Quantitative Aptitude - Arithmetic Ability Questions

Reflection of the point (­2,5) in the x­ axis is

In a class of 39 students there are 36 girls. The average weight of these girls is 38 Kg and average weight of the full class is 40 kgs. What is the average weight of the boys of the class?

What will be the value of a3+b3, if a2+b2=32 and a+b=8 ?

In a class when a test is conducted, mean of 25 students marks is 60 if mean of first 13 students marks is 70 and mean of last 13 students marks is 50 find the marks of the middle student when arranged in the ascending order.

An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?

In a triangle ABC, AB = 8 cm, AC = 10 cm and ∠B = 90°, then the area of ΔABC is

A train is moving at the speed of 36 km/hr. How many seconds it will take to cover a distance of 600 meters?

The order of rotational symmetry of a parallelogram is